PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Viruses fail to induce a primary response.
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Viruses can have a high mutation rate.
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B cells do not interact with viruses.
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Antibodies cannot interact with viruses.
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Detailed explanation-1: -Memory B and T-cells are antigen-specific and, on encountering the antigen again, can mount a more rapid and effective immune response, known as the secondary immune response.
Detailed explanation-2: -During the secondary immune response, the immune system can eliminate the antigen, which has been encountered by the individual during the primary invasion, more rapidly and efficiently. Both T and B memory cells contribute to the secondary response.
Detailed explanation-3: -A secondary immune response occurs as a result of a second exposure to an antigen. It is a much more rapid and sustained response due to the action of memory immune cells.
Detailed explanation-4: -Because our memory cells are “experienced, ‘’ we will respond to a second (or subsequent) encounter more quickly. Whereas in a primary encounter, antibodies are not generated for several days, during a memory response antibodies appear in just a few days.